SP8S — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: KN19

Receiver-side FT8 activity involving SP8S, decoded by SO8OO in southeastern Poland. 7 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-07-13.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 7 FT8 messages attributed to SP8S as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

40m · 7

First attributed message: 2026-07-13
Last attributed message: 2026-07-13 20:07 UTC

Observed FT8 message patterns

Attributed sample: 7 messages
Active dates: 1 UTC dates
Estimated median S/N: -16 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SP8S in decoded directed-looking exchanges:

PD0IFI · Netherlands EA7GRB · Spain EB4DMH · Spain PD0RCQ · Netherlands R3PJ · European Russia RL3K · European Russia ZC4RH · UK Base Areas on Cyprus

Most frequent locator attributed to SP8S

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: KN19 · 5 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 100 km (approx.)
Last such locator decoded: 2026-07-13 20:07 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	SP8S S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 12:11	20m	- / -	R3PJ	-8 / -	2	✓ Closing fragment
08-30 10:41	20m	- / -	RL3K	+2 / -	2	✓ Closing fragment
08-29 20:35	20m	- / -	EB4DMH	-8 / -	2	Partial capture
08-29 20:02	20m	- / -15	EB4DMH	-7 / -	3	✓ Closing fragment
08-29 19:41	20m	- / -	EA7GRB	-18 / -	3	✓ Closing fragment
08-10 17:38	20m	- / -	R4HHN	-16 / -	2	Partial capture
08-10 17:37	20m	- / -	IU5TPM	-9 / -	5	Partial capture
08-09 17:34	10m	- / -	RN6MA	-14 / -	3	Partial capture
08-02 20:32	20m	- / -3	PD0RCQ	-7 / -	4	✓ Closing fragment
08-02 12:19	20m	- / -	F1PSX	-11 / -	11	Partial capture
08-02 12:10	20m	- / -	PD4FL	-22 / -	3	Partial capture
08-02 11:33	20m	- / -9	M0PFX	-14 / -	3	Partial capture
08-02 11:29	20m	- / -	G0ULG	-16 / -	3	Partial capture
08-02 11:28	20m	- / -6	M0PFX	-13 / -	3	Partial capture
07-16 18:56	20m	- / -3	ZC4RH	-20 / -	2	✓ Closing fragment
07-13 20:05	40m	-16 / -	RI1PC	- / -	2	Partial capture
07-13 19:57	40m	-16 / -	RL2F	- / -2	4	Partial capture
06-29 19:21	10m	- / -	PD0IFI	-1 / -	6	✓ Closing fragment
06-29 06:25	10m	- / -	DN9SGE	-2 / -	7	Partial capture
06-24 09:33	10m	- / -11	T77RN	-3 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

20m

UTC    dB Audio  Message
194115 -22 1555  SP8S EA7GRB IM76 (x3)
200215  -4 2191  SP8S EB4DMH IN80 (x5)
104145  -1 2195  SP8S RL3K KO91 (x2)
110745 -16 2200  SP8S IS0LYN JN40
112215  -4 2532  SP8S F/SP7TBS R-11
112515 -19 1893  SP8S EA1AOC R-17
121145  -7 1223  SP8S R3PJ KO84 (x2)

10m

UTC    dB Audio  Message
062745  +6 1158  SP8S DN9SGE JO42 (x3)
192100  -3 2474  SP8S PD0IFI JO32 (x6)
062930  -7 2572  SP8S PD0HLA -03
111845 -17 1767  SP8S UD4F +22
173445 -16 2084  SP8S RN6MA +15 (x2)
173515 -11 2636  SP8S F1PBZ -16
173545 -16 2084  SP8S RN6MA +15

40m

UTC    dB Audio  Message
195730 -16 2313  RL2F SP8S KN19 (x4)
200445 -17 2314  VK9DX SP8S KN19
200545 -17 2313  RI1PC SP8S KN19 (x2)

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee